package w17;
//类成员变量的默认值
public class S02 {
	int i;
	double d;
	char c;
	boolean b;
	Circle circle;
	public static void main(String[] args) {
		S02 s02 = new S02();
		System.out.println("i="+s02.i);
		System.out.println("d="+s02.d);
		System.out.println("c="+(int)s02.c);
		System.out.println("b="+s02.b);
		System.out.println("circle="+s02.circle);

	}

}
